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elena55 [62]
3 years ago
12

A student in CEM143 was doing a fractional distillation when she noticed that the temperature suddenly started to drop. What cou

ld have caused the decrease in the temperature
Chemistry
1 answer:
Vedmedyk [2.9K]3 years ago
7 0

Explanation:

A process where two or more number of miscible liquids present in different fractions are separated by boiling at different temperatures is called fractional distillation.

The sudden decrease in temperature is because the compounds having lower boiling point have completed the distillation before vapor of the higher boiling point can actually fill the distillation head.

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<h3>What is molarity?</h3>

Molar concentration (also known as molarity, quantity concentration, or substance concentration) is a measure of the concentration of a chemical species in a solution, specifically of a solute, in terms of amount of substance per unit volume of solution. The most often used unit for molarity in chemistry is the number of moles per liter, denoted by the unit symbol mol/L or mol/dm3 in SI units. A solution with a concentration of 1 mol/L is referred to as 1 molar, or 1 M.

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68/34 = 2 moles

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= 12.044 × 10²³ molecules.  


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